[   11.055103][  T252] ip (252) used greatest stack depth: 24416 bytes left
[   18.878354][   T12] tun0: no available key for peer 2, key-id: 0
[   18.878646][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[   18.878872][   T12] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[   18.879022][   T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.0.0-rc5-virtme #1 PREEMPT(full) 
[   18.879025][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.879027][   T12] Workqueue: kstrp strp_work
[   18.879035][   T12] Call Trace:
[   18.879036][   T12]  <TASK>
[   18.879038][   T12]  dump_stack_lvl+0x6f/0xa0
[   18.879045][   T12]  check_preemption_disabled+0xdb/0xf0
[   18.879050][   T12]  ovpn_recv+0x192/0x2a0 [ovpn]
[   18.879054][   T12]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[   18.879059][   T12]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[   18.879063][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[   18.879067][   T12]  ? __napi_alloc_frag_align+0x90/0x470
[   18.879072][   T12]  __strp_recv+0x1ee/0x1b70
[   18.879077][   T12]  ? rcu_lockdep_current_cpu_online+0x39/0x1b0
[   18.879083][   T12]  __tcp_read_sock+0x1a1/0x7c0
[   18.879087][   T12]  ? strp_process+0xb0/0xb0
[   18.879090][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[   18.879095][   T12]  strp_read_sock+0x20f/0x2b0
[   18.879098][   T12]  ? strp_stop+0x50/0x50
[   18.879099][   T12]  ? __lock_release.isra.0+0x59/0x170
[   18.879105][   T12]  ? lockdep_hardirqs_on+0x84/0x130
[   18.879107][   T12]  ? __local_bh_enable_ip+0xa3/0x140
[   18.879111][   T12]  strp_work+0x9f/0xe0
[   18.879113][   T12]  process_one_work+0xdf6/0x1410
[   18.879120][   T12]  ? pwq_dec_nr_in_flight+0x700/0x700
[   18.879122][   T12]  ? lock_acquire.part.0+0xbc/0x260
[   18.879129][   T12]  worker_thread+0x4eb/0xd60
[   18.879136][   T12]  ? rescuer_thread+0x1340/0x1340
[   18.879142][   T12]  kthread+0x30f/0x3f0
[   18.879145][   T12]  ? trace_irq_enable.constprop.0+0x13c/0x190
[   18.879149][   T12]  ? kthread_affine_node+0x150/0x150
[   18.879153][   T12]  ret_from_fork+0x472/0x6b0
[   18.879158][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[   18.879162][   T12]  ? __switch_to+0x538/0xcf0
[   18.879166][   T12]  ? kthread_affine_node+0x150/0x150
[   18.879170][   T12]  ret_from_fork_asm+0x11/0x20
[   18.879181][   T12]  </TASK>
[   18.954597][    C0] tun0: no available key for peer 3, key-id: 0
[   19.023562][   T12] tun0: no available key for peer 4, key-id: 0
[   19.023753][   T12] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u16:0/12
[   19.023983][   T12] caller is ovpn_recv+0x192/0x2a0 [ovpn]
[   19.024116][   T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 7.0.0-rc5-virtme #1 PREEMPT(full) 
[   19.024119][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.024121][   T12] Workqueue: kstrp strp_work
[   19.024128][   T12] Call Trace:
[   19.024130][   T12]  <TASK>
[   19.024132][   T12]  dump_stack_lvl+0x6f/0xa0
[   19.024143][   T12]  check_preemption_disabled+0xdb/0xf0
[   19.024148][   T12]  ovpn_recv+0x192/0x2a0 [ovpn]
[   19.024153][   T12]  ovpn_tcp_rcv+0x277/0x920 [ovpn]
[   19.024158][   T12]  ? ovpn_tcp_write_space+0x2b0/0x2b0 [ovpn]
[   19.024162][   T12]  ? ovpn_tcp_disconnect+0x10/0x10 [ovpn]
[   19.024165][   T12]  ? __napi_alloc_frag_align+0x90/0x470
[   19.024171][   T12]  __strp_recv+0x1ee/0x1b70
[   19.024176][   T12]  ? lock_acquire.part.0+0xbc/0x260
[   19.024181][   T12]  __tcp_read_sock+0x1a1/0x7c0
[   19.024185][   T12]  ? strp_process+0xb0/0xb0
[   19.024188][   T12]  ? tcp_cleanup_rbuf+0x1c0/0x1c0
[   19.024191][   T12]  ? __lock_sock+0x192/0x200
[   19.024196][   T12]  strp_read_sock+0x20f/0x2b0
[   19.024198][   T12]  ? strp_stop+0x50/0x50
[   19.024200][   T12]  ? __lock_release.isra.0+0x59/0x170
[   19.024204][   T12]  ? lockdep_hardirqs_on+0x84/0x130
[   19.024206][   T12]  ? __local_bh_enable_ip+0xa3/0x140
[   19.024210][   T12]  strp_work+0x9f/0xe0
[   19.024212][   T12]  process_one_work+0xdf6/0x1410
[   19.024219][   T12]  ? pwq_dec_nr_in_flight+0x700/0x700
[   19.024222][   T12]  ? lock_acquire.part.0+0xbc/0x260
[   19.024228][   T12]  worker_thread+0x4eb/0xd60
[   19.024235][   T12]  ? rescuer_thread+0x1340/0x1340
[   19.024238][   T12]  kthread+0x30f/0x3f0
[   19.024240][   T12]  ? trace_irq_enable.constprop.0+0x13c/0x190
[   19.024244][   T12]  ? kthread_affine_node+0x150/0x150
[   19.024247][   T12]  ret_from_fork+0x472/0x6b0
[   19.024251][   T12]  ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140
[   19.024255][   T12]  ? __switch_to+0x538/0xcf0
[   19.024258][   T12]  ? kthread_affine_node+0x150/0x150
[   19.024261][   T12]  ret_from_fork_asm+0x11/0x20
[   19.024268][   T12]  </TASK>
[   37.192762][  T454] iperf3 (454) used greatest stack depth: 23240 bytes left
[   39.439301][  T479] tun0: deleting peer with id 1, reason 1
[   39.491196][  T480] tun1: deleting peer with id 10, reason 1
[   42.056432][  T494] tun0: deleting peer with id 2, reason 1
[   42.119319][  T495] tun2: deleting peer with id 11, reason 1
[   45.804417][   T10] tun0: deleting peer with id 4, reason 2
[   45.804877][   T10] tun0: deleting peer with id 3, reason 2
[   45.805119][   T10] tun0: deleting peer with id 5, reason 2
[   45.805394][   T10] tun0: deleting peer with id 6, reason 2
[   50.925511][   T64] tun3: deleting peer with id 12, reason 2
[   50.988192][   T10] tun4: deleting peer with id 13, reason 2
[   51.052179][   T10] tun6: deleting peer with id 15, reason 2
[   51.053177][   T64] tun5: deleting peer with id 14, reason 2